After I completed this mission, I passed by the house next to the south drawbridge and one of the data recorders was still there, complete with green light coming off it.
Not sure if this was the only one still there (I didn't check the other locations), but I was able to activate it (using the x button), and it appeared as though I picked it up, except no recording played and the green light + item description were still there, but the data recorder wasn't. Fellturtle 01:38, April 18, 2010 (UTC)

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